package com.study.rcp.framework.core;

import org.eclipse.core.runtime.Platform;
import org.eclipse.equinox.app.IApplication;
import org.eclipse.equinox.app.IApplicationContext;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;

import com.study.rcp.framework.login.LoginDialog;

/**
 * This class controls all aspects of the application's execution
 */
public class Application implements IApplication {

	/* (non-Javadoc)
	 * @see org.eclipse.equinox.app.IApplication#start(org.eclipse.equinox.app.IApplicationContext)
	 */
	@SuppressWarnings("deprecation")
	public Object start(IApplicationContext context) {
//		Display display = PlatformUI.createDisplay();
//		try {
//			int returnCode = PlatformUI.createAndRunWorkbench(display, new ApplicationWorkbenchAdvisor());
//			if (returnCode == PlatformUI.RETURN_RESTART) {
//				return IApplication.EXIT_RESTART;
//			}
//			return IApplication.EXIT_OK;
//		} finally {
//			display.dispose();
//		}
		
		Display display = PlatformUI.createDisplay();
		try {
			Shell shell = Display.getCurrent().getActiveShell();

			try {
				if (!doLogin(shell)) {
					Platform.endSplash();
					return EXIT_OK;
				}
			} finally {
				if (shell != null) {
					shell.dispose();
				}
			}
			int returnCode = PlatformUI.createAndRunWorkbench(display,
					new ApplicationWorkbenchAdvisor());
			if (returnCode == PlatformUI.RETURN_RESTART) {
				return IApplication.EXIT_RESTART;
			}
			return IApplication.EXIT_OK;
		} finally {
			display.dispose();
		}
	}

	/**
	 * <p>
	 * 用户登录。
	 * </p>
	 * @param shell
	 * @return 判断登录是否成功
	 */
	private boolean doLogin(Shell shell) {
		LoginDialog dialog = new LoginDialog(shell);
		int result = dialog.open();
		if (result != Dialog.OK) {
			return false;
		}
		return true;
	}
	/* (non-Javadoc)
	 * @see org.eclipse.equinox.app.IApplication#stop()
	 */
	public void stop() {
		if (!PlatformUI.isWorkbenchRunning())
			return;
		final IWorkbench workbench = PlatformUI.getWorkbench();
		final Display display = workbench.getDisplay();
		display.syncExec(new Runnable() {
			public void run() {
				if (!display.isDisposed())
					workbench.close();
			}
		});
	}
}
